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Article Dans Une Revue Journal de Physique III Année : 1994

STATIC ELECTRIFICATION PHENOMENA OF INSULATING MATERIALS FOR POWER TRANSFORMERS

Résumé

In power transformers, the oil flowed through the cooling ducts in coil assembly induces a static charge separation. The study of this static electrification phenomena is presented through a device allowing to investigate the charge separation generated by the rotating motion of a transformer pressboard in oil. This permits to show the influence of various parameters such as velocity, temperature, moisture and processing of oils and pressboards as well as their nature on this electrical charge. We also present another device allowing to classify oils according to their level of charge production. It appears from our results that a correlation exists between the density of these charges and the characteristics of oil such as conductivity, electric strength and water content.

Mots clés

OIL
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Dates et versions

hal-00141649 , version 1 (13-04-2007)

Identifiants

  • HAL Id : hal-00141649 , version 1

Citer

L. Peyraque, Abderrahmane Beroual, C. Boisdon, François Buret. STATIC ELECTRIFICATION PHENOMENA OF INSULATING MATERIALS FOR POWER TRANSFORMERS. Journal de Physique III, 1994, 4 (7), pp.1295-1304. ⟨hal-00141649⟩
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